Things are changing very quickly with electricity supply innovations. Octopus Energy has really shaken the marketplace with various tariffs for virtually every solar, battery storage, ASHP and BEV set-up. I have been investigating using a V2L-enabled car to run the house, or at least add additional electricity to supplement my existing generation. I intend to install a hybrid solar inverter with a “generator” port and connect the car directly to the port using a charger cable. I received this reply from Sunsynk who supply inverters with this capability.
You won’t be able to do this unless, you run a small separate circuit with V2L, there will also be issues as the property must be able to disconnect, (island they property) in the even of a power cut.
I believe there is only one compatible charger at present and its very expensive, (Indra)